CPA Micarta Based
Rahul Sharma / Bill Sands
The present design shown in this document is based on the use of Micarta
as the base material this will likely change the design will work with G-10
or other materials with minor changes due to material strengths.
24 Panel 3 section Micarta CPA
Weight ~ 1400 lbs.
12 parallel plate
sections
CPA Overall Dimensions
Main Hanger G-10
6 Pcs. Required
Main Hanger Dimensions
Main hanger internal
stainless steel
reinforcement
Tubes are fitted inside one
and other and fastened with
FH screws the horizontal
tubes have stainless steel
reinforcement tubes at the
joints as they are subjected
to loading
Each vertical section consists of 2
tubes and 3 stainless steel
hangers to support a column of 4
parallel plate sections
Parallel plates are connected to 3” wide
strips with tapped holes to connect the
panels
Example of a 2 plane middle section weight ~100 lbs.
Center joint connecting
middle section to the
end sections
Center joint has the vertical
connector dropped in after the
tube is slide as do the other
vertical joints this joint also brings
HV from one section to the other
½” tapped pins connect the vertical sections
Shear pin connection pin
and oversized head screws
Cryo testing of the Micarta and G-10 demonstrate that the
tensile strengths in both materials do rather well in a cryo state
Horizontal tube to elbow connection
with column pin connector
Stainless steel
elbow to vertical
tube connection
Swivel tee for HV connection
Slots cut into top and bottom
panels to allow liquid argon
flow between panels
Conclusion
• This document demonstrates that this is a
viable design for construction of the CPA the
design will likely need to be tweaked with a
change in material.